| Seiyuu | Role |
| Jun Fukuyama | Lelouch |
| Takahiro Sakurai | Suzaku Kururugi |
| Yukana Nogami | C.C. |
| Kikuko Inoue | Cecil |
| Tetsu Shiratori | Loyd Asbrund |
| Saeko Chiba | Nina Einstein |
| Noriaki Sugiyama | Rival Caldemond |
| Sayaka Ohara | Mirei Ashford |
| Fumiko Orikasa | Shirley Fenette |
| Kaori Nazuka | Nanali |
| Ami Koshimizu | Karen Stadtfeld |
| Norio Wakamoto | Emperor of Britannia |
| Yukana Nogami | Narration |
| Omi Minami | Yufemia |
| Katsuhisa Houki | Batley |
| Junko Minagawa | Cornelia |
| Kiyoyuki Yanada | Darton |
| Nobuo Tobita | Crovis |
| Mitsuaki Madono | Ougi |
| Ken Narita | Jeremiah Gotthardt |
| Akeno Watanabe | Viletta |
| Jouji Nakata | Diethart Lied |
| Kazunari Tanaka | Shinichirou |
| Satomi Arai | Sayoko |
| Yuuji Takada | Toudou |
| Yasuyuki Kase | Kyuuel (Episode 4, 5, 7) |
| Atsushi Kisaichi | Nagata (Episode 1 & 8.5) |
| Ken Narita | Shirley's Father (Episode 8) |
| Sayaka Ohara | Lelouch (as a child Episode 8.5) |
| Akeno Watanabe | Suzaku (as a child Episode 8.5) |
| Yasuhiko Kawazu | Laslo (Episode 8.5) |